06-23-2013, 07:52 PM | #15 |
Svt lol
Drives: 2011 ss inferno orange blown Join Date: Jan 2012
Location: Topeka
Posts: 2,312
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Ok that's what thought that's no big deal didn't they block them off on our cars though I haven't pulled this engine apart yet I'm use to the lq4 so it had all of the pipes already.
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06-23-2013, 08:27 PM | #16 |
V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
Location: Burbank,IL
Posts: 6,373
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Yes they are blocked off. He probably just forgot to put them back.
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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06-23-2013, 08:36 PM | #17 |
Svt lol
Drives: 2011 ss inferno orange blown Join Date: Jan 2012
Location: Topeka
Posts: 2,312
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I'm tracking I might just go this route seems like not a lot of people have experience with them and 77and2010 hasn't had a problem worth a shot I guess unless anyone else knows a sponsor that wants to chime in about what makes there program better or members have any suggestions
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06-23-2013, 09:13 PM | #18 |
V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
Location: Burbank,IL
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Hotrod magazine did an article on Rectangular port and GMPP heads held their own.
Have you considered the LsA heads which are cast differently and can handle the cylinder pressures better. http://www.lingenfelter.com/mm5/merc...egory_Code=C40
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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06-23-2013, 10:32 PM | #19 |
Drives: 2013 A6 GT 5.0 Join Date: Nov 2009
Location: Edmond, OK
Posts: 2,909
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There are certainly better cnc ported head choices but probably not many for that kind of money. If your on a budget then they look like a good choice. In any case they are going to help your setup more than the factory heads. When you factor in selling your old heads they are really cheap because most places ask for a core. I would recommend LS9 head gaskets and ARP studs or at least ARP bolts when you put it back together. Should end up making at least 20RWHP with a loss of boost. Add the boost back and your probably looking at 40+RWHP. Post results when done.
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BLK/BLK 1SS/RS Ordered 11-01-2009 Took delivery 12-22-2009. Heads/cam/converter/bolt ons. SOLD Feb 2015 to fund 6th gen LT1 SS with 8L90E.
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06-24-2013, 06:13 AM | #20 | |
Tampa Gulf Coast Family
Drives: 1977 Z28, 2SSRS 2010 M6 Join Date: Sep 2009
Location: Dunedin FL
Posts: 810
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Quote:
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06-24-2013, 06:37 AM | #21 |
Svt lol
Drives: 2011 ss inferno orange blown Join Date: Jan 2012
Location: Topeka
Posts: 2,312
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I considered lsa heads but every company I spoke with said the ls3 heads were fine for what I wanted to do I am going to run head studs and have the ls9 head gasket should put my compression with the heads at 9.23:1 which is perfect. One bad thing I will say about the lsa heads I'm having a hard time living with is, everywhere you look it cost roughly 1500 for a good cnc job with new valves and springs on an ls3 head, but for some reason lsa heads to get machined you can double that amount.
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06-24-2013, 08:31 AM | #22 |
V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
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It is expensive. And to me justifying that much then I'd just go with a TFS head which I know will handle anything thrown at it and being able to run larger cams and better flow.
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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06-24-2013, 09:13 AM | #23 |
Drives: Camaro Join Date: Apr 2009
Location: Texas
Posts: 1,669
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I've seen the GMPP heads before & they're nice. For the money there are plenty of better options IMHO, if you want to do cnc stock castings why not do the PRC cnc head exchange program? You send your heads in as cores & get ported ones back for under a grand! If your going to spend big $$ the only way to go would be the PRC 255 or 260 heads IMHO! 380cfm capable out of a head that has better p/v clearance, smaller chambers, virtually stock side runners for better velocity, and they can still use your stock rockers!
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06-24-2013, 09:14 AM | #24 |
Drives: Camaro Join Date: Apr 2009
Location: Texas
Posts: 1,669
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06-24-2013, 09:15 AM | #25 |
V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
Location: Burbank,IL
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^^^or this! For sure.
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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06-24-2013, 09:25 AM | #26 |
Svt lol
Drives: 2011 ss inferno orange blown Join Date: Jan 2012
Location: Topeka
Posts: 2,312
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I've talked to you guys about doing my heads before I'm leaning more toward you guys than any other aftermarket machine shop either way I want to run your guys .675 eht springs I think they will work best with my cam I have. But you guys down there never treated me wrong and I'm always referring people to you.
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06-24-2013, 05:21 PM | #27 |
Account Suspended
Drives: 2010 camaro ss Join Date: Nov 2012
Location: Richmond Hill, GA
Posts: 726
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06-24-2013, 06:40 PM | #28 |
Svt lol
Drives: 2011 ss inferno orange blown Join Date: Jan 2012
Location: Topeka
Posts: 2,312
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The only thing I don't have are the heads hints the purpose of the thread.
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Tags |
cnc, gmpp, ls3heads |
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